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Fencer Vulns
medium 4.3

CVE-2021-30810 json

An authorization issue was addressed with improved state management.

published 2021-10-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17727

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

An authorization issue was addressed with improved state management. This issue is fixed in iOS 15 and iPadOS 15, watchOS 8, tvOS 15. An attacker in physical proximity may be able to force a user onto a malicious Wi-Fi network during device setup.

Patch / fix

  • Apple iOS and iPadOS 15
  • Apple tvOS 15
  • Apple watchOS 8

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 2.9 AV:A/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • Apple iOS and iPadOS
  • Apple tvOS
  • Apple watchOS

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.